Home / 19,911.45-27,477.99-10,959.14

Finding the Fourth Proportional to 19,911.45, 27,477.99 and 10,959.14

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Solution

The fourth proportional to 19,911.45, 27,477.99 and 10,959.14 is: 15,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.45 : 27,477.99 = 10,959.14 : x
  2. Step 2: Convert to fraction form
    19,911.45/27,477.99 = 10,959.14/x
  3. Step 3: Cross multiply
    19,911.45x = 27,477.99 × 10,959.14
  4. Step 4: Simplify right side
    19,911.45x = 301,135,001.94
  5. Step 5: Solve for x
    x = 301,135,001.94/19,911.45
  6. Step 6: Final answer
    x = 15,123.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.